Heating season arrives all too quickly in Southern New Hampshire.

An efficient and reliable heating system is a necessity. If you’d like to improve the comfort, convenience, and air quality of your home while trimming costs, give MASI Plumbing, Heating & A/C a call. We offer installation, upgrades, repair, and maintenance of boiler heating systems. Understanding the many and exceptional benefits of hydronic heating, we look forward to working with you. We also offer services on steam boilers and provide installation of 96% high efficiency boilers. Working with trusted brands such as Navien, Rinnai, and Weil-McLain, we’ll find the perfect system to suit your needs.

Expert Boiler Repairs, Maintenance & Installations

If you’ve never considered the advantages of boiler heating, now’s the perfect time. The boiler heats and distributes water via a network of pipes concealed in walls or under floors. The heat radiates into the room, avoiding operational noise, fluctuating temperatures, drafts, and the introduction of allergens. Because water serves as a much better thermal medium than air, a hydronic system costs less to run. Plus, the easy setup of zoned control allows further opportunity to trim expenses and cater to personal preference.

Trust in our team of technicians for all your boiler services!

Boilers offer versatility. Choose streamlined radiators, slim baseboard heaters, the cost-effective luxury of radiant floors, or a combination. How about towel warmers? You can even heat your hot tub. Family owned and operated, MASI Plumbing, Heating & A/C is here to answer all of your needs as well as your highest expectations. We draw from 55 years of experience and all of our technicians maintain gas and plumbing licenses. Contact us at (603) 889-2331 for free estimates, flat rate pricing, convenient scheduling, and 24/7 Emergency Repair throughout Nashua, Milford, Amherst, Hudson, & Merrimack, NH.

Serving Southern New Hampshire

  • Wilton
  • Milford
  • Amherst
  • Mont Vernon
  • Brookline
  • Hollis
  • Nashua
  • Hudson
  • Litchfield
  • Bedford
  • Manchester
  • Derry
  • Londonderry
  • Windham
  • Pelham
  • Salem
  • Merrimack

Heating and CoolingHVAC Service

Boiler Installation, Boiler Repair & Boiler Service Amherst, NH, Nashua, NH, Merrimack, NH, Hudson, NH & Milford, NH

Paula L.

Came home to my central a/c not working. After checking a few things, I called Masi Plumbing, based off of consumer reviews here. The person who answered the phone was accommodating to my needs and had a service person here super promptly! The service person was very friendly, highly informative and fixed the issue promptly- and not at a high cost either! Will def be calling them for our needs again, and referring them as well. Thanks a million Masi Plumbing!

Susan C.

My pipes froze and burst on a Sunday evening. I called several plumbers who would not give me the time of day. MASI Plumbing to the rescue! They sent a plumber (Nick) out immediately who was able to repair the broken pipes that evening, even though though he had already worked all day! A huge thank you! I highly recommend MASI Plumbing and will be using them exclusively in the future.

Christine C.

Bought a new boiler system from them this year and they gave us the most comprehensive quote for the right work (pointed out the need for fresh air and a new oil line which we knew were needed) at a good price. Unfortunately one of our parts in the system failed, but they had it replaced and our system up and running within 2 hours, and covered under warranty, so no cost to us. They have always been very friendly, down to earth, but professional. Great to work with!